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106688354 = 253344177
BaseRepresentation
bin1100101101111…
…10111101100010
321102202022220112
412112332331202
5204303011404
614330411322
72433556523
oct626767542
9242668815
10106688354
115524a5a3
122b890b42
1319145c06
141025284a
15957656e
hex65bef62

106688354 has 4 divisors (see below), whose sum is σ = 160032534. Its totient is φ = 53344176.

The previous prime is 106688347. The next prime is 106688357. The reversal of 106688354 is 453886601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453886601 = 764840943.

It can be written as a sum of positive squares in only one way, i.e., 103530625 + 3157729 = 10175^2 + 1777^2 .

It is a super-2 number, since 2×1066883542 = 22764809758458632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106688357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26672087 + ... + 26672090.

Almost surely, 2106688354 is an apocalyptic number.

106688354 is a deficient number, since it is larger than the sum of its proper divisors (53344180).

106688354 is an equidigital number, since it uses as much as digits as its factorization.

106688354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53344179.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 106688354 is about 10329.0054700344. The cubic root of 106688354 is about 474.2845798917.

The spelling of 106688354 in words is "one hundred six million, six hundred eighty-eight thousand, three hundred fifty-four".

Divisors: 1 2 53344177 106688354